:root{--primary-color:#6366f1;--secondary-color:#f1f5f9;--success-color:#10b981;--danger-color:#ef4444;--warning-color:#f59e0b;--text-primary:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;--border-color:#e2e8f0;--bg-primary:#ffffff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.05);--shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);--shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);--border-radius:8px;--transition:all 0.2s ease}[data-theme="dark"]{--text-primary:#f1f5f9;--text-secondary:#cbd5e1;--text-muted:#64748b;--border-color:#334155;--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.3);--shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);--shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.6;transition:var(--transition)}.app-container{height:100vh;display:flex;flex-direction:column}.app-header{background:var(--bg-primary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem}.header-content h1{font-size:1.5rem;font-weight:600;color:var(--primary-color);display:flex;align-items:center;gap:0.5rem}.header-actions{display:flex;gap:0.5rem}.search-bar{padding:0 1.5rem 1rem;display:none;opacity:0;transform:translateY(-10px);transition:var(--transition)}.search-bar.active{display:flex;opacity:1;transform:translateY(0)}.search-bar input{flex:1;padding:0.5rem 1rem;border:1px solid var(--border-color);border-radius:var(--border-radius);background:var(--bg-secondary);color:var(--text-primary);font-size:0.875rem}.search-bar input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgb(99 102 241 / 0.1)}.main-content{flex:1;display:flex;overflow:hidden}.sidebar{width:300px;background:var(--bg-primary);border-right:1px solid var(--border-color);display:flex;flex-direction:column}.sidebar-header{padding:1.5rem;border-bottom:1px solid var(--border-color)}.notes-list{flex:1;overflow-y:auto;padding:1rem}.note-item{padding:1rem;border-radius:var(--border-radius);margin-bottom:0.5rem;cursor:pointer;transition:var(--transition);border:1px solid transparent;animation:fadeIn 0.3s ease}.note-item:hover{background:var(--bg-secondary);border-color:var(--border-color)}.note-item.active{background:var(--primary-color);color:white;border-color:var(--primary-color)}.note-item-title{font-weight:500;margin-bottom:0.25rem;font-size:0.875rem}.note-item-preview{font-size:0.75rem;color:var(--text-muted);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.note-item.active .note-item-preview{color:rgba(255,255,255,0.8)}.note-item-date{font-size:0.75rem;color:var(--text-muted);margin-top:0.5rem}.note-item.active .note-item-date{color:rgba(255,255,255,0.7)}.editor-section{flex:1;display:flex;flex-direction:column;background:var(--bg-primary)}.editor-header{display:flex;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border-color);gap:1rem}.title-input{flex:1;border:none;background:transparent;font-size:1.25rem;font-weight:600;color:var(--text-primary);outline:none}.title-input::placeholder{color:var(--text-muted)}.editor-actions{display:flex;gap:0.5rem}.editor-toolbar{display:flex;align-items:center;padding:0.75rem 1.5rem;border-bottom:1px solid var(--border-color);gap:0.25rem;background:var(--bg-secondary)}.toolbar-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;background:transparent;color:var(--text-secondary);border-radius:4px;cursor:pointer;transition:var(--transition)}.toolbar-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.toolbar-btn.active{background:var(--primary-color);color:white}.toolbar-divider{width:1px;height:24px;background:var(--border-color);margin:0 0.5rem}.editor-container{flex:1;padding:1.5rem;overflow-y:auto}.note-editor{min-height:100%;outline:none;font-size:1rem;line-height:1.7;color:var(--text-primary)}.note-editor:empty::before{content:attr(placeholder);color:var(--text-muted);font-style:italic}.editor-footer{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-top:1px solid var(--border-color);background:var(--bg-secondary);font-size:0.875rem;color:var(--text-secondary)}.btn-primary{background:var(--primary-color);color:white;border:none;padding:0.75rem 1rem;border-radius:var(--border-radius);font-weight:500;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:0.5rem;width:100%;justify-content:center}.btn-primary:hover{background:#5048e5;transform:translateY(-1px)}.btn-success{background:var(--success-color);color:white;border:none;padding:0.5rem 1rem;border-radius:var(--border-radius);cursor:pointer;transition:var(--transition)}.btn-success:hover{background:#059669}.btn-danger{background:var(--danger-color);color:white;border:none;padding:0.5rem 1rem;border-radius:var(--border-radius);cursor:pointer;transition:var(--transition)}.btn-danger:hover{background:#dc2626}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);padding:0.5rem 1rem;border-radius:var(--border-radius);cursor:pointer;transition:var(--transition)}.btn-secondary:hover{background:var(--border-color)}.btn-icon{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:0.5rem;border-radius:var(--border-radius);transition:var(--transition);display:flex;align-items:center;justify-content:center}.btn-icon:hover{background:var(--bg-secondary);color:var(--text-primary)}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:1000;align-items:center;justify-content:center}.modal.active{display:flex}.modal-content{background:var(--bg-primary);padding:2rem;border-radius:var(--border-radius);box-shadow:var(--shadow-lg);max-width:400px;width:90%}.modal-content h3{margin-bottom:1rem;color:var(--text-primary)}.modal-content p{margin-bottom:1.5rem;color:var(--text-secondary)}.modal-actions{display:flex;gap:1rem;justify-content:flex-end}@media (max-width:768px){.sidebar{width:100%;position:absolute;top:0;left:-100%;height:100%;z-index:50;transition:var(--transition)}.sidebar.active{left:0}.editor-header{flex-direction:column;align-items:stretch;gap:1rem}.editor-actions{justify-content:center}.editor-toolbar{flex-wrap:wrap}.editor-footer{flex-direction:column;gap:0.5rem;text-align:center}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.note-editor h1,.note-editor h2,.note-editor h3{margin:1rem 0 0.5rem;font-weight:600}.note-editor h1{font-size:1.5rem}.note-editor h2{font-size:1.25rem}.note-editor h3{font-size:1.125rem}.note-editor p{margin-bottom:1rem}.note-editor ul,.note-editor ol{margin:1rem 0;padding-left:2rem}.note-editor li{margin-bottom:0.25rem}.note-editor blockquote{border-left:4px solid var(--primary-color);padding-left:1rem;margin:1rem 0;font-style:italic;color:var(--text-secondary)}.note-editor code{background:var(--bg-secondary);padding:0.125rem 0.25rem;border-radius:4px;font-family:'Fira Code',monospace;font-size:0.875rem}.note-editor pre{background:var(--bg-secondary);padding:1rem;border-radius:var(--border-radius);overflow-x:auto;margin:1rem 0}.note-editor pre code{background:none;padding:0}\n#last-saved.unsaved{color:var(--danger-color);}